Abstract
Zn–F co-doped TiO2 nanomaterials were prepared by the sol-gel method. The effect of various amounts of modifying additives (0.1–2 mol% Zn and 0.1–4 mol% F) and calcined temperature (500–900 °C) on the properties of the obtained materials were studied. X-ray diffraction, transmission electron microscopy, scanning electron microscopy, UV–Vis spectroscopy, fluorescence, and EDX spectroscopy were used to analyze the crystal structure, surface morphology, elemental composition, and stability of the prepared nanomaterials. The introduction of ions was found to increase the thermal stability of anatase modification of titanium dioxide. The photocatalytic activity of obtained materials was studied in the reaction of a model pollutant photodegradation under UV and visible light activation. The photocatalytic activity induced by UV exposure is higher than that of commercial material Degussa P25. It was shown that the best photocatalytic activity exhibit materials with minimum amounts of modifying additives (0.1 mol% of Zn and F).
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